(CNN) — Retiring Democratic Sen. Joe Manchin of West Virginia and former Sen. Rob Portman, an Ohio Republican, are holding off on throwing support behind their parties’ presidential nominees, while ...

Sen. Rob Portman (R-OH) announced Saturday night he was retracting his endorsement of Republican Presidential Nominee Donald Trump after a tape of Trump talking about forcing himself on women surfaced ...

Former U.S. Sen. Rob Portman is backing Matt Dolan in Ohio's Republican U.S. Senate primary, a nod that could boost Dolan's profile in the final days of the race. In a letter to Ohioans, Portman and ...

Republican Matt Dolan has landed the endorsement of former U.S. Sen. Rob Portman in the fractious three-way primary to take on Democratic U.S. Sen. Sherrod Brown this fall, a potentially important ...

Republican Ohio Sen. Rob Portman appeared on Fox & Friends on Tuesday where he criticized President Barack Obama for claiming that successful small businesses have to thank public sector projects for ...

Former U.S. Senator Rob Portman running away from reporters, claiming he did not see or hear the latest Donald Trump tweet/remark during the first Trump administration, proved to me that he is a ...

— -- Ohio Sen. Rob Portman defended Mitt Romney against Democratic charges that he was a "job destroyer" during his tenure at Bain Capital, insisting the presumptive Republican nominee has a ...

Now that Republican senator Rob Portman's son has come out to him, he supports gay marriage. This makes him the first Republican senator to hold that position. That's great, right? Progress is ...

Ohio Senator Rob Portman spoked out last week in favor of marriage equality, becoming the only sitting Republican Senator to take that position. Portman isn’t the first conservative to reverse his ...

COLUMBUS, Ohio (AP) — Republican Matt Dolan has landed the endorsement of former U.S. Sen. Rob Portman in the fractious three-way primary to take on Democratic U.S. Sen. Sherrod Brown this fall, a ...